<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 商品搜索和添加区域 -->
      <el-row :gutter="30">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 商品table表格列表区域 -->
      <el-table :data="goodsList" stripe border style="width: 100%">
        <el-table-column prop="#" type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="100"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="80"></el-table-column>
        <el-table-column label="创建时间" width="160">
          <template slot-scope="scope">
            {{scope.row.add_time|dateFormat}}
          </template>
        </el-table-column>
        <el-table-column  label="操作" width="180">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeGoodsById(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 翻页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 30]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 获取商品列表参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表数据数组
      goodsList: [],
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取商品数据列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表数据失败！')
      }
      // 为商品列表数据赋值
      this.goodsList = res.data.goods
      // 为商品总的条目数赋值
      this.total = res.data.total
      console.log(res.data)
    },
    handleSizeChange(newsize) {
      this.queryInfo.pagesize = newsize
      this.getGoodsList()
    },
    handleCurrentChange(newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 点击按钮跳转到添加商品页面
    goAddPage() {
      this.$router.push('/goods/add')
    },
    // 点击删除按钮删除产品
    removeGoodsById(id) {
      this.$confirm('此操作将永久删除该商品信息, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(async () => {
          // 用户点击确认删除按钮处理函数
          const { data: res } = await this.$http.delete(
            `goods/${id}`
          )
          if (res.meta.status !== 200) {
            return this.$message.error('删除商品信息失败！')
          }
          // 重新获取商品参数列表数据
          this.getGoodsList()
          this.$message.success('删除商品信息成功!')
        })
        .catch(() => {
          // 用户点击取消删除按钮处理函数
          this.$message.info('已取消删除商品信息！')
        })
    }
  }
}
</script>
<style lang="less" scoped>
</style>
